Door-retainer.



No. 689,238; Patented nec. n, |901.

" W. J. SMITH.

D003 RETAINER.

(Application led Aug. 24, 1901.) (NdModel.) A 2 Sheets-Sheet. l.y

No..aa9,23a. l Patented nec. 17,. :am

I w; SMITH.

n0nn-E-TAmER. (Applicaton l'd Aug: T1901.)- (lo Modal.) 2 Sheets-Shen 2;

UNITED STATES IVILLIAM J. SMITH, OF I-IAMMONTON, -NEW JERSEY.

DooR--Ria'rnnaER.-

SPECIFICATION forming part of Letters Patent No. 689,238, dated December 17, 1901.

Application tiled August 24, 1901.

To @ZZ whom t may concern.-

Beit known that I, WILLIAM J. SMITH, a citizen of the United States, and a resident of Hammonton, New Jersey, have invented certain Improvements in Door-Retainers, of which the following is a specification.

The object of my invention is to so construct a door-bolt and the keeper or retainer therefor that the said parts can be used both to retain the door in the locked position and to retain it when it has been partly opened for ventilation or other purposes, serving in this respect a function similar to that of an ordinary chain bolt.

In the accompanyingdrawings, Figure lis a perspective View of part of a door and doorjamb having door-bolt and keeper constructed in accordance with my invention. Fig. 2 is a face view of part of the door-jarnb with its bolt keeper or retainer, the parts ot the lat- Y ter being in the position assumed by them when the door is locked. Fig. 3 is a similar view, but with the movable portion of the keeper adjusted so as to permit of `the partial opening of the door.V Fig. 4 is a vertical section on the line a a, Fig. 2. Fig. 5 is a similar section on the line b b, Fig. 3. Fig. 6 is a sectional plan view on the line c c, Fig. 2', with the door-bolt shown in elevation; and Fig. 7 is a sectional plan View on the line (ich Fig. 3, also showing the door-bolt in elevation.

In the drawings, l represents part of a door, and 2 part ot' the doorjarnb, 3 representing the face-plate of the door-lock, 4 the projecting latch-bolt of the same, and 5 the projecting locking-bolt, which differs from the ordinary locking-bolt of the door in having a reduced portion some distance inward from its outer end, so as to form on that portion of the bolt which is projected beyond the lockcasing a head 6 and a neck 7, which is preferably of the cross-sectional form shown in Figs. 2 and S-that is to say, it has two of its diagonally opposite corners squared and its other two diagonally opposite corners rounded.

The keeper or retainer plate 9 is secured to the recessed portion of the door-jamb, as usual, and has the ordinary opening 10 for the reception of the latch-bolt 4, and adjacent to this opening a projecting strike plate or Serial No. 73,131. (No model.)

tongue ll, with which said latch-bolt comes in contact when the door is closed. The lower portion of the keeper-plate 9, however, is recessed or countersunk for the reception of a swinging plate 12, which may be pivoted in the upper portion of the recess in any-desired manner, the plan shown in the drawings for accomplishing this result being to provide the plate with projecting headed pins, or screws 13, which play in segmental slots 14, formed in the keeper-plate 9, as shown in Figs. 2 and 3.

The plate 12 has an oblong slot l5 extending throughout almost the ent-ire length of the saine, and the keeper-plate 9 has a slot`16 extending inwardly from one edge of ,the

same, the keeper-plate being preferably stiffened aroundthe edges of this slot by means of, an inwardlyprojecting flange 17, which ange, as shown in Figs. 4 to 7, is by preference continued around the recess 19, formed in the jainb of the door` for the reception ot' the projected portion of the door-bolt 5, the flan-ge thus forming a box or casing for receiving said projecting portion of the bolt and also a lining for protecting the edges of the recess 19.

The bolt 5 is projected when the door is closed and the pivoted plate 12 occupies the vertical position shown in Fig. 2, the bolt passing through the upper portion of the slot 15 in said plate, so that the head of the bolt enters the recess 19 in the door-jarnb, while the reduced neck 7 of the bolt occupies the recess 15 ofthe plate 12. The pivotal axis of said plate 12 is coincident with the center of the bolt 5, so that any pressure upon the door tending to open it will be exerted against the plate 12 directly in line with the pivotal axis thereof, and hencewill have no tendency to move said plate ont of locking position, the plate therefore serving to retain the bolt as effectively as though it was a lixed part of the keeper-plate. When it is desired to permit ofthe limited opening of the door, however, the plate 12 is swung inwardly in the direction of the arrow, Fig. 2, until it assutncs the horizontal position shown in Fig. 3, whereupon the door may be opened to the extent permitted by the length of the slot 15, the reduced neck 7of the bolt sliding through IOO said slot until it finally enters a notch 15a at the end ot' the slot, the door being thereby retained in the open position until the plate 12 has been raised, so as to free the holt from the notch 15, the width of the neck 7 of the bolt being so much greater than the thickness of the plate l2 as to compensate for the arc in whiclrthe bolt travels. Hence there is 11o strain upon either the plate or its pivotal connections. (See Fig. 7.)

The rounded corners of the reduced neck V7 of the bolt permit the plate 12 to swing without interference, while the projecting' head 6 of the bolt locks the plate 12 to said bolt in the direction of the length of the latter, so that the plate cannot be forced off of the end of the bolt in order to release the latter from its control, as might be possible yif this enlarged head upon the rholt was not provided.

In order to facilitate the swinging of the plate 12 on the keeper-plate, said plate 12 is preferably provided with a projecting lip or inger 20, although this is not essential and may be omitted, it' desired.

The squaring of the diagonally opposite corners of the neck 7 of the bolt is also not essential, as the neck may, if desired, be circular in cross-section; but by permitting the opposite corners to remain square a greater amount ot' metal is provided in 'the neck,

therebyincreasing its strength and also its hearing-suri`aces in contact with the walls of the slot 15 in the retaining-plate, as well as providing a square shoulder for engaging with the notch 15 of the retainer-plate.

My improved keeper-plate when the locking-bolt is retracted does not interfere with the free opening and closing.r of the door and the operation of the latch-bolt it, butit serves to electually retain the locking-bolt when the same is projected either with the door fully locked, as shown in Figs. 2 and 6, or partially opened, as shown in Figs. 3 and 7. My invention, moreover, does not add materially to the cost of the lock, since it involves simply the formation of the reduced neck upon the locking-bolt and the providing ot' the keeper-plate with the swinging member 12.

Having thus described my invention, I claim and desire to secure by Letters Patent- 1. The combination of the keeper-plate of a door-lock having a slotted an dv swinging retainer-plate, with a bolt entering said slot in the swinging retainer-plate, and bearing upon esaess the latter in line horizont-ally with the axis of rotation of the same, substantially as specified.

2. The combination ot the keeper-plate having a slotted and swinging retainer-plate with a bolt projected into and through said slot in the retainer-plate, and having a reduced neck bearing upon the said retainerplate in line horizontally with the pivotal axis thereof, substantially as specified.

3. The combination of a door-lock having a latch-bolt and a locking-holt, with a keeperplate having an opening for the reception of the latch-bolt vand locking-bolt, and a slotted and swinging retainer-plate for/engagement with the locking-bolt, substantially as specified. t

4f. The combination of the keeper-plate having a slotted and swinging retainer-plate, with a lock having a bolt with a portion for entering said -slot of the retainer-plate, said entering portion ofthe boit having two of its diagonally opposite corners squared and the other two rounded, substantially as specified.

The combination of the keeper-plate having a slotted Iand swinging retainer-plate, with a locking-bolt having a reduced neck entering said slot', the width of this reduced portion being greater than the thickness of the retainer-plate so as to compensate for the arc of a circle in whichlhe bolt swings, substantially as specified..

6. The combination of the keeper-plate with a slotted and swinging retainer-plate thereon, said keeper-plate having a slot in line with the slot of the retainer-plate when the latter is swung outward, and said slot of the keeper-plate having an inwardly-projecting edge tiange, substantially as specified.

7. The combination of the keeper-plate with a slotted and swinging retainer-plate thereon, said keeper-plate having a slot in line with the-slot of theretainer-plate when the latter is swung outward, and also having an inwardly-projecting box or casingswhich can receive the end portion of a bolt projected through the slots of the keeper and retainer plates, substantially. as specied. Y

In testimony whereof:` I have signed my name to this specification in the presence of two subscribing witnesses.

WILLAM J. SMITH.

Vit-nesses:

A. B. DAVIS, HALvoR L. HARLEY, 

